net: convert remaining non-symbolic return values in ndo_start_xmit() functions

This patch converts the remaining occurences of raw return values to their
symbolic counterparts in ndo_start_xmit() functions that were missed by the
previous automatic conversion.

Additionally code that assumed the symbolic value of NETDEV_TX_OK to be zero
is changed to explicitly use NETDEV_TX_OK.

Signed-off-by: Patrick McHardy <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

arch/xtensa/platforms/iss/network.c

···
 	spin_unlock_irqrestore(&lp->lock, flags);
 
 	dev_kfree_skb(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 

drivers/isdn/hysdn/hysdn_net.c

···
 	if (lp->sk_count <= 3) {
 		schedule_work(&((hysdn_card *) dev->ml_priv)->irq_queue);
 	}
-	return (0);		/* success */
+	return NETDEV_TX_OK;	/* success */
 }				/* net_send_packet */
 
 

drivers/isdn/i4l/isdn_net.c

···
 	isdn_net_dev *nd;
 	isdn_net_local *slp;
 	isdn_net_local *lp = (isdn_net_local *) netdev_priv(ndev);
-	int retv = 0;
+	int retv = NETDEV_TX_OK;
 
 	if (((isdn_net_local *) netdev_priv(ndev))->master) {
 		printk("isdn BUG at %s:%d!\n", __FILE__, __LINE__);
 		dev_kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	/* For the other encaps the header has already been built */

drivers/isdn/i4l/isdn_ppp.c

···
 	isdn_net_dev *nd;
 	unsigned int proto = PPP_IP;     /* 0x21 */
 	struct ippp_struct *ipt,*ipts;
-	int slot, retval = 0;
+	int slot, retval = NETDEV_TX_OK;
 
 	mlp = (isdn_net_local *) netdev_priv(netdev);
 	nd = mlp->netdev;       /* get master lp */
···
 	if (!(ipts->pppcfg & SC_ENABLE_IP)) {	/* PPP connected ? */
 		if (ipts->debug & 0x1)
 			printk(KERN_INFO "%s: IP frame delayed.\n", netdev->name);
-		retval = 1;
+		retval = NETDEV_TX_BUSY;
 		goto out;
 	}
 
···
 	lp = isdn_net_get_locked_lp(nd);
 	if (!lp) {
 		printk(KERN_WARNING "%s: all channels busy - requeuing!\n", netdev->name);
-		retval = 1;
+		retval = NETDEV_TX_BUSY;
 		goto out;
 	}
 	/* we have our lp locked from now on */

drivers/net/3c501.c

···
 			if (el_debug > 2)
 				pr_debug(" queued xmit.\n");
 			dev_kfree_skb(skb);
-			return 0;
+			return NETDEV_TX_OK;
 		}
 		/* A receive upset our load, despite our best efforts */
 		if (el_debug > 2)

drivers/net/7990.c

···
 		lp->tx_full = 1;
 	spin_unlock_irqrestore (&lp->devlock, flags);
 
-        return 0;
+        return NETDEV_TX_OK;
 }
 EXPORT_SYMBOL_GPL(lance_start_xmit);
 

drivers/net/a2065.c

···
 	volatile struct lance_regs *ll = lp->ll;
 	volatile struct lance_init_block *ib = lp->init_block;
 	int entry, skblen;
-	int status = 0;
+	int status = NETDEV_TX_OK;
 	unsigned long flags;
 
 	if (skb_padto(skb, ETH_ZLEN))
-		return 0;
+		return NETDEV_TX_OK;
 	skblen = max_t(unsigned, skb->len, ETH_ZLEN);
 
 	local_irq_save(flags);

drivers/net/bonding/bond_3ad.c

···
 		dev_kfree_skb(skb);
 	}
 	read_unlock(&bond->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type* ptype, struct net_device *orig_dev)

drivers/net/bonding/bond_alb.c

···
 	}
 	read_unlock(&bond->curr_slave_lock);
 	read_unlock(&bond->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 void bond_alb_monitor(struct work_struct *work)

drivers/net/bonding/bond_main.c

···
 		dev_kfree_skb(skb);
 	}
 	read_unlock(&bond->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 
···
 
 	read_unlock(&bond->curr_slave_lock);
 	read_unlock(&bond->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*
···
 		dev_kfree_skb(skb);
 	}
 	read_unlock(&bond->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*
···
 
 	/* frame sent to all suitable interfaces */
 	read_unlock(&bond->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*------------------------- Device initialization ---------------------------*/

drivers/net/defxx.c

···
 		bp->xmt_length_errors++;		/* bump error counter */
 		netif_wake_queue(dev);
 		dev_kfree_skb(skb);
-		return(0);				/* return "success" */
+		return NETDEV_TX_OK;			/* return "success" */
 	}
 	/*
 	 * See if adapter link is available, if not, free buffer
···
 			bp->xmt_discards++;					/* bump error counter */
 			dev_kfree_skb(skb);		/* free sk_buff now */
 			netif_wake_queue(dev);
-			return(0);							/* return "success" */
+			return NETDEV_TX_OK;		/* return "success" */
 			}
 		}
 
···
 	dfx_port_write_long(bp, PI_PDQ_K_REG_TYPE_2_PROD, bp->rcv_xmt_reg.lword);
 	spin_unlock_irqrestore(&bp->lock, flags);
 	netif_wake_queue(dev);
-	return(0);							/* packet queued to adapter */
+	return NETDEV_TX_OK;	/* packet queued to adapter */
 	}
 
 

drivers/net/depca.c

···
 static int load_packet(struct net_device *dev, struct sk_buff *skb)
 {
 	struct depca_private *lp = netdev_priv(dev);
-	int i, entry, end, len, status = 0;
+	int i, entry, end, len, status = NETDEV_TX_OK;
 
 	entry = lp->tx_new;	/* Ring around buffer number. */
 	end = (entry + (skb->len - 1) / TX_BUFF_SZ) & lp->txRingMask;

drivers/net/ibm_newemac/core.c

···
 	++dev->stats.tx_packets;
 	dev->stats.tx_bytes += len;
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /* Tx lock BH */

drivers/net/ifb.c

···
 {
 	struct ifb_private *dp = netdev_priv(dev);
 	struct net_device_stats *stats = &dev->stats;
-	int ret = 0;
+	int ret = NETDEV_TX_OK;
 	u32 from = G_TC_FROM(skb->tc_verd);
 
 	stats->rx_packets++;

drivers/net/irda/ali-ircc.c

···
 	
 	IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __func__ );
 	
-	IRDA_ASSERT(dev != NULL, return 0;);
+	IRDA_ASSERT(dev != NULL, return NETDEV_TX_OK;);
 	
 	self = netdev_priv(dev);
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self != NULL, return NETDEV_TX_OK;);
 
 	iobase = self->io.sir_base;
 

drivers/net/irda/donauboe.c

···
 
   self = netdev_priv(dev);
 
-  IRDA_ASSERT (self != NULL, return 0; );
+  IRDA_ASSERT (self != NULL, return NETDEV_TX_OK; );
 
   IRDA_DEBUG (1, "%s.tx:%x(%x)%x\n", __func__
       ,skb->len,self->txpending,INB (OBOE_ENABLEH));

drivers/net/irda/nsc-ircc.c

···
 	
 	self = netdev_priv(dev);
 
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self != NULL, return NETDEV_TX_OK;);
 
 	iobase = self->io.fir_base;
 

drivers/net/irda/sir_dev.c

···
 	int err;
 	s32 speed;
 
-	IRDA_ASSERT(dev != NULL, return 0;);
+	IRDA_ASSERT(dev != NULL, return NETDEV_TX_OK;);
 
 	netif_stop_queue(ndev);
 

drivers/net/irda/smsc-ircc2.c

···
 
 	IRDA_DEBUG(1, "%s\n", __func__);
 
-	IRDA_ASSERT(dev != NULL, return 0;);
+	IRDA_ASSERT(dev != NULL, return NETDEV_TX_OK;);
 
 	self = netdev_priv(dev);
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self != NULL, return NETDEV_TX_OK;);
 
 	netif_stop_queue(dev);
 
···
 			smsc_ircc_change_speed(self, speed);
 			spin_unlock_irqrestore(&self->lock, flags);
 			dev_kfree_skb(skb);
-			return 0;
+			return NETDEV_TX_OK;
 		}
 		self->new_speed = speed;
 	}
···
 
 	dev_kfree_skb(skb);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*
···
 	s32 speed;
 	int mtt;
 
-	IRDA_ASSERT(dev != NULL, return 0;);
+	IRDA_ASSERT(dev != NULL, return NETDEV_TX_OK;);
 	self = netdev_priv(dev);
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self != NULL, return NETDEV_TX_OK;);
 
 	netif_stop_queue(dev);
 
···
 			smsc_ircc_change_speed(self, speed);
 			spin_unlock_irqrestore(&self->lock, flags);
 			dev_kfree_skb(skb);
-			return 0;
+			return NETDEV_TX_OK;
 		}
 
 		self->new_speed = speed;
···
 	spin_unlock_irqrestore(&self->lock, flags);
 	dev_kfree_skb(skb);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*

drivers/net/irda/via-ircc.c

···
 	__u32 speed;
 
 	self = netdev_priv(dev);
-	IRDA_ASSERT(self != NULL, return 0;);
+	IRDA_ASSERT(self != NULL, return NETDEV_TX_OK;);
 	iobase = self->io.fir_base;
 
 	netif_stop_queue(dev);

drivers/net/lib8390.c

···
 	dev_kfree_skb (skb);
 	dev->stats.tx_bytes += send_length;
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /**

drivers/net/mlx4/en_tx.c

···
 	/* Poll CQ here */
 	mlx4_en_xmit_poll(priv, tx_ind);
 
-	return 0;
+	return NETDEV_TX_OK;
 
 tx_drop:
 	dev_kfree_skb_any(skb);

drivers/net/myri10ge/myri10ge.c

···
 		}
 	}
 	dev_kfree_skb_any(skb);
-	return 0;
+	return NETDEV_TX_OK;
 
 drop:
 	ss = &mgp->ss[skb_get_queue_mapping(skb)];
 	dev_kfree_skb_any(skb);
 	ss->stats.tx_dropped += 1;
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 static struct net_device_stats *myri10ge_get_stats(struct net_device *dev)

drivers/net/ni52.c

···
 
 	if (skb->len > XMIT_BUFF_SIZE) {
 		printk(KERN_ERR "%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n", dev->name, XMIT_BUFF_SIZE, skb->len);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	netif_stop_queue(dev);
···
 	}
 	dev_kfree_skb(skb);
 #endif
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*******************************************

drivers/net/skfp/skfddi.c

···
 		// dequeue packets from xmt queue and send them
 		netif_start_queue(dev);
 		dev_kfree_skb(skb);
-		return (0);	/* return "success" */
+		return NETDEV_TX_OK;	/* return "success" */
 	}
 	if (bp->QueueSkb == 0) {	// return with tbusy set: queue full
 

drivers/net/sonic.c

···
 	length = skb->len;
 	if (length < ETH_ZLEN) {
 		if (skb_padto(skb, ETH_ZLEN))
-			return 0;
+			return NETDEV_TX_OK;
 		length = ETH_ZLEN;
 	}
 
···
 
 	dev->trans_start = jiffies;
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*

drivers/net/tokenring/smctr.c

···
         if(tp->QueueSkb > 0)
 		netif_wake_queue(dev);
 		
-        return (0);
+        return NETDEV_TX_OK;
 }
 
 static int smctr_send_lobe_media_test(struct net_device *dev)

drivers/net/tokenring/tms380tr.c

···
 	tms380tr_exec_sifcmd(dev, CMD_TX_VALID);
 	spin_unlock_irqrestore(&tp->lock, flags);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*

drivers/net/tulip/dmfe.c

···
 	if (skb->len > MAX_PACKET_SIZE) {
 		printk(KERN_ERR DRV_NAME ": big packet = %d\n", (u16)skb->len);
 		dev_kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	spin_lock_irqsave(&db->lock, flags);
···
 	/* free this SKB */
 	dev_kfree_skb(skb);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 

drivers/net/wan/dlci.c

···
 	ret = 0;
 
 	if (!skb || !dev)
-		return(0);
+		return NETDEV_TX_OK;
 
 	dlp = netdev_priv(dev);
 
···
 	/* Alan Cox recommends always returning 0, and always freeing the packet */
 	/* experience suggest a slightly more conservative approach */
 
-	if (!ret)
+	if (ret == NETDEV_TX_OK)
 	{
 		dev_kfree_skb(skb);
 		netif_wake_queue(dev);

drivers/net/wan/dscc4.c

···
 	if (dscc4_tx_quiescent(dpriv, dev))
 		dscc4_do_tx(dpriv, dev);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 static int dscc4_close(struct net_device *dev)

drivers/net/wan/farsync.c

···
 		dbg(DBG_ASS,
 		    "Tried to transmit but no carrier on card %d port %d\n",
 		    card->card_no, port->index);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	/* Drop it if it's too big! MTU failure ? */
···
 		    LEN_TX_BUFFER);
 		dev_kfree_skb(skb);
 		dev->stats.tx_errors++;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	/*
···
 		dev->stats.tx_errors++;
 		dbg(DBG_ASS, "Tx queue overflow card %d port %d\n",
 		    card->card_no, port->index);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	/*
···
 	fst_q_work_item(&fst_work_txq, card->card_no);
 	tasklet_schedule(&fst_tx_task);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*

drivers/net/wan/lmc/lmc_main.c

···
     lmc_softc_t *sc = dev_to_sc(dev);
     u32 flag;
     int entry;
-    int ret = 0;
+    int ret = NETDEV_TX_OK;
     unsigned long flags;
 
     lmc_trace(dev, "lmc_start_xmit in");

drivers/net/wan/wanxl.c

···
 	}
 
 	spin_unlock(&port->lock);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 

drivers/net/wireless/hostap/hostap_80211_tx.c

···
 		printk(KERN_DEBUG "%s: hostap_data_start_xmit: short skb "
 		       "(len=%d)\n", dev->name, skb->len);
 		kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	if (local->ddev != dev) {
···
 			printk(KERN_DEBUG "%s: prism2_tx: trying to use "
 			       "AP device with Ethernet net dev\n", dev->name);
 			kfree_skb(skb);
-			return 0;
+			return NETDEV_TX_OK;
 		}
 	} else {
 		if (local->iw_mode == IW_MODE_REPEAT) {
 			printk(KERN_DEBUG "%s: prism2_tx: trying to use "
 			       "non-WDS link in Repeater mode\n", dev->name);
 			kfree_skb(skb);
-			return 0;
+			return NETDEV_TX_OK;
 		} else if (local->iw_mode == IW_MODE_INFRA &&
 			   (local->wds_type & HOSTAP_WDS_AP_CLIENT) &&
 			   memcmp(skb->data + ETH_ALEN, dev->dev_addr,
···
 		skb = skb_unshare(skb, GFP_ATOMIC);
 		if (skb == NULL) {
 			iface->stats.tx_dropped++;
-			return 0;
+			return NETDEV_TX_OK;
 		}
 		if (pskb_expand_head(skb, need_headroom, need_tailroom,
 				     GFP_ATOMIC)) {
 			kfree_skb(skb);
 			iface->stats.tx_dropped++;
-			return 0;
+			return NETDEV_TX_OK;
 		}
 	} else if (skb_headroom(skb) < need_headroom) {
 		struct sk_buff *tmp = skb;
···
 		kfree_skb(tmp);
 		if (skb == NULL) {
 			iface->stats.tx_dropped++;
-			return 0;
+			return NETDEV_TX_OK;
 		}
 	} else {
 		skb = skb_unshare(skb, GFP_ATOMIC);
 		if (skb == NULL) {
 			iface->stats.tx_dropped++;
-			return 0;
+			return NETDEV_TX_OK;
 		}
 	}
 
···
 	/* Send IEEE 802.11 encapsulated frame using the master radio device */
 	skb->dev = local->dev;
 	dev_queue_xmit(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 
···
 		printk(KERN_DEBUG "%s: hostap_mgmt_start_xmit: short skb "
 		       "(len=%d)\n", dev->name, skb->len);
 		kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	iface->stats.tx_packets++;
···
 	/* Send IEEE 802.11 encapsulated frame using the master radio device */
 	skb->dev = local->dev;
 	dev_queue_xmit(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 
···
 		printk(KERN_DEBUG "%s: invalid skb->cb magic (0x%08x, "
 		       "expected 0x%08x)\n",
 		       dev->name, meta->magic, HOSTAP_SKB_TX_DATA_MAGIC);
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		iface->stats.tx_dropped++;
 		goto fail;
 	}
···
 	if (skb->len < 24) {
 		printk(KERN_DEBUG "%s: hostap_master_start_xmit: short skb "
 		       "(len=%d)\n", dev->name, skb->len);
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		iface->stats.tx_dropped++;
 		goto fail;
 	}
···
 			       dev->name, meta->ethertype);
 			hostap_dump_tx_80211(dev->name, skb);
 
-			ret = 0; /* drop packet */
+			ret = NETDEV_TX_OK; /* drop packet */
 			iface->stats.tx_dropped++;
 			goto fail;
 		}
 		break;
 	case AP_TX_DROP:
-		ret = 0; /* drop packet */
+		ret = NETDEV_TX_OK; /* drop packet */
 		iface->stats.tx_dropped++;
 		goto fail;
 	case AP_TX_RETRY:
···
 	case AP_TX_BUFFERED:
 		/* do not free skb here, it will be freed when the
 		 * buffered frame is sent/timed out */
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		goto tx_exit;
 	}
 
···
 			       "frame (drop_unencrypted=1)\n", dev->name);
 		}
 		iface->stats.tx_dropped++;
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		goto fail;
 	}
 
···
 		if (skb == NULL) {
 			printk(KERN_DEBUG "%s: TX - encryption failed\n",
 			       dev->name);
-			ret = 0;
+			ret = NETDEV_TX_OK;
 			goto fail;
 		}
 		meta = (struct hostap_skb_tx_data *) skb->cb;
···
 			       "expected 0x%08x) after hostap_tx_encrypt\n",
 			       dev->name, meta->magic,
 			       HOSTAP_SKB_TX_DATA_MAGIC);
-			ret = 0;
+			ret = NETDEV_TX_OK;
 			iface->stats.tx_dropped++;
 			goto fail;
 		}
 	}
 
 	if (local->func->tx == NULL || local->func->tx(skb, dev)) {
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		iface->stats.tx_dropped++;
 	} else {
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		iface->stats.tx_packets++;
 		iface->stats.tx_bytes += skb->len;
 	}
 
  fail:
-	if (!ret && skb)
+	if (ret == NETDEV_TX_OK && skb)
 		dev_kfree_skb(skb);
  tx_exit:
 	if (tx.sta_ptr)

drivers/net/wireless/ipw2x00/libipw_tx.c

···
 		if (ret == 0) {
 			dev->stats.tx_packets++;
 			dev->stats.tx_bytes += txb->payload_size;
-			return 0;
+			return NETDEV_TX_OK;
 		}
 
 		ieee80211_txb_free(txb);
 	}
 
-	return 0;
+	return NETDEV_TX_OK;
 
       failed:
 	spin_unlock_irqrestore(&ieee->lock, flags);

drivers/net/wireless/prism54/islpci_eth.c

···
 	/* unlock the driver code */
 	spin_unlock_irqrestore(&priv->slock, flags);
 
-	return 0;
+	return NETDEV_TX_OK;
 
       drop_free:
 	ndev->stats.tx_dropped++;

drivers/net/wireless/wavelan.c

···
 #ifdef DEBUG_TX_TRACE
 	printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name);
 #endif
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*********************** HARDWARE CONFIGURATION ***********************/

drivers/net/wireless/wavelan_cs.c

···
 	 * able to detect collisions, therefore in theory we don't really
 	 * need to pad. Jean II */
 	if (skb_padto(skb, ETH_ZLEN))
-		return 0;
+		return NETDEV_TX_OK;
 
   wv_packet_write(dev, skb->data, skb->len);
 
···
 #ifdef DEBUG_TX_TRACE
   printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name);
 #endif
-  return(0);
+  return NETDEV_TX_OK;
 }
 
 /********************** HARDWARE CONFIGURATION **********************/

drivers/net/wireless/wl3501_cs.c

···
 	if (rc) {
 		++dev->stats.tx_dropped;
 		netif_stop_queue(dev);
-		rc = NETDEV_TX_OK;
 	} else {
 		++dev->stats.tx_packets;
 		dev->stats.tx_bytes += skb->len;
···
 			netif_stop_queue(dev);
 	}
 	spin_unlock_irqrestore(&this->lock, flags);
-	return rc;
+	return NETDEV_TX_OK;
 }
 
 static int wl3501_open(struct net_device *dev)

drivers/s390/net/claw.c

···
 	CLAW_DBF_TEXT_(4, trace, "clawtx%d", rc);
 	if (rc)
 		rc = NETDEV_TX_BUSY;
+	else
+		rc = NETDEV_TX_OK;
         return rc;
 }   /*  end of claw_tx */
 

drivers/s390/net/lcs.c

···
 		 struct net_device *dev)
 {
 	struct lcs_header *header;
-	int rc = 0;
+	int rc = NETDEV_TX_OK;
 
 	LCS_DBF_TEXT(5, trace, "hardxmit");
 	if (skb == NULL) {
 		card->stats.tx_dropped++;
 		card->stats.tx_errors++;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 	if (card->state != DEV_STATE_UP) {
 		dev_kfree_skb(skb);
 		card->stats.tx_dropped++;
 		card->stats.tx_errors++;
 		card->stats.tx_carrier_errors++;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 	if (skb->protocol == htons(ETH_P_IPV6)) {
 		dev_kfree_skb(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 	netif_stop_queue(card->dev);
 	spin_lock(&card->lock);

drivers/s390/net/netiucv.c

···
 	if (skb == NULL) {
 		IUCV_DBF_TEXT(data, 2, "netiucv_tx: skb is NULL\n");
 		privptr->stats.tx_dropped++;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 	if (skb_headroom(skb) < NETIUCV_HDRLEN) {
 		IUCV_DBF_TEXT(data, 2,
 			"netiucv_tx: skb_headroom < NETIUCV_HDRLEN\n");
 		dev_kfree_skb(skb);
 		privptr->stats.tx_dropped++;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	/**
···
 		privptr->stats.tx_dropped++;
 		privptr->stats.tx_errors++;
 		privptr->stats.tx_carrier_errors++;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	if (netiucv_test_and_set_busy(dev)) {

drivers/s390/net/qeth_l2_main.c

···
 		card->stats.tx_bytes += tx_bytes;
 		if (new_skb != skb)
 			dev_kfree_skb_any(skb);
+		rc = NETDEV_TX_OK;
 	} else {
 		if (data_offset >= 0)
 			kmem_cache_free(qeth_core_header_cache, hdr);

drivers/s390/net/qeth_l3_main.c

···
 				card->perf_stats.sg_frags_sent += nr_frags + 1;
 			}
 		}
+		rc = NETDEV_TX_OK;
 	} else {
 		if (data_offset >= 0)
 			kmem_cache_free(qeth_core_header_cache, hdr);

drivers/staging/rt2860/rt_main_dev.c

···
 {
 	struct net_device *net_dev = skb->dev;
 	PRTMP_ADAPTER pAd = net_dev->ml_priv;
-	int status = 0;
+	int status = NETDEV_TX_OK;
 	PNDIS_PACKET pPacket = (PNDIS_PACKET) skb;
 
 	{
···
 
 	STASendPackets((NDIS_HANDLE)pAd, (PPNDIS_PACKET) &pPacket, 1);
 
-	status = 0;
+	status = NETDEV_TX_OK;
 done:
 
 	return status;
···
 	if (!(net_dev->flags & IFF_UP))
 	{
 		RELEASE_NDIS_PACKET(pAd, (PNDIS_PACKET)skb_p, NDIS_STATUS_FAILURE);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	NdisZeroMemory((PUCHAR)&skb_p->cb[CB_OFF], 15);

drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c

···
 			if ((*ieee->hard_start_xmit)(txb, dev) == 0) {
 				stats->tx_packets++;
 				stats->tx_bytes += txb->payload_size;
-				return 0;
+				return NETDEV_TX_OK;
 			}
 			ieee80211_txb_free(txb);
 		}
 	}
 
-	return 0;
+	return NETDEV_TX_OK;
 
  failed:
 	spin_unlock_irqrestore(&ieee->lock, flags);

drivers/staging/rtl8187se/r8180_core.c

···
 		spin_unlock_irqrestore(&priv->tx_lock,flags);
 
 		dev_kfree_skb_any(skb);
-		return 0;
+		return NETDEV_TX_OK;
 	}
 
 	rtl8180_tx(dev, skb->data, skb->len, priority,
···
 	spin_unlock_irqrestore(&priv->tx_lock,flags);
 
 	dev_kfree_skb_any(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 // longpre 144+48 shortpre 72+24

drivers/staging/wlan-ng/p80211netdev.c

···
 	p80211_metawep_t p80211_wep;
 
 	if (skb == NULL)
-		return 0;
+		return NETDEV_TX_OK;
 
 	if (wlandev->state != WLAN_DEVICE_OPEN) {
 		result = 1;

net/atm/mpc.c

···
 	while (i < mpc->number_of_mps_macs) {
 		if (!compare_ether_addr(eth->h_dest, (mpc->mps_macs + i*ETH_ALEN)))
 			if ( send_via_shortcut(skb, mpc) == 0 )           /* try shortcut */
-				return 0;                                 /* success!     */
+				return NETDEV_TX_OK;                      /* success!     */
 		i++;
 	}
 

net/core/dev.c

···
 			skb_dst_drop(skb);
 
 		rc = ops->ndo_start_xmit(skb, dev);
-		if (rc == 0)
+		if (rc == NETDEV_TX_OK)
 			txq_trans_update(txq);
 		/*
 		 * TODO: if skb_orphan() was called by
···
 		skb->next = nskb->next;
 		nskb->next = NULL;
 		rc = ops->ndo_start_xmit(nskb, dev);
-		if (unlikely(rc)) {
+		if (unlikely(rc != NETDEV_TX_OK)) {
 			nskb->next = skb->next;
 			skb->next = nskb;
 			return rc;
···
 
 out_kfree_skb:
 	kfree_skb(skb);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 static u32 skb_tx_hashrnd;

net/mac80211/tx.c

···
 	u32 sta_flags = 0;
 
 	if (unlikely(skb->len < ETH_HLEN)) {
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		goto fail;
 	}
 
···
 		if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
 			/* Do not send frames with mesh_ttl == 0 */
 			sdata->u.mesh.mshstats.dropped_frames_ttl++;
-			ret = 0;
+			ret = NETDEV_TX_OK;
 			goto fail;
 		}
 		memset(&mesh_hdr, 0, sizeof(mesh_hdr));
···
 		hdrlen = 24;
 		break;
 	default:
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		goto fail;
 	}
 
···
 
 		I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
 
-		ret = 0;
+		ret = NETDEV_TX_OK;
 		goto fail;
 	}
 
···
 	dev->trans_start = jiffies;
 	dev_queue_xmit(skb);
 
-	return 0;
+	return NETDEV_TX_OK;
 
  fail:
-	if (!ret)
+	if (ret == NETDEV_TX_OK)
 		dev_kfree_skb(skb);
 
 	return ret;